我国目前水稻品种上存在的问题主要是品种单一和品种混杂。新育成的品种虽不少,但远不能满足农业生产发展的迫切要求。目前要迅速达到良种普及,提高产量,要在品种上解决品种单一和品种混杂问题。首先在利用地方的和改良的现有良种,从育种和良种繁育上着眼,参考国外近十多年 At present, the problems existing in rice varieties in our country are mainly single varieties and mixed varieties. Although many cultivated new varieties, but far from meeting the urgent requirements of the development of agricultural production. At present, it is necessary to quickly achieve the popularization of seed quality and increase the yield, and it is necessary to solve the problems of single variety and mixed variety on the variety. First of all, taking advantage of the existing and improved existing varieties, we should focus on breeding and breeding and reference to foreign countries for nearly a decade